Borrowing it
Nothing to install: this file belongs to LuckyKuang/codex-tokens-compress. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/LuckyKuang/codex-tokens-compress/master/AGENTS.mdgit clone --depth 1 https://github.com/LuckyKuang/codex-tokens-compressWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/luckykuang/codex-tokens-compress/agents-md)<a href="https://agentmods.dev/instructions/luckykuang/codex-tokens-compress/agents-md"><img src="https://agentmods.dev/badge/instructions/luckykuang/codex-tokens-compress/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/luckykuang/codex-tokens-compress/agents-md"><img src="https://agentmods.dev/badge/instructions/luckykuang/codex-tokens-compress/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00611 | $0.00611 |
| Opus 5 | $0.00305 | $0.00305 |
| Sonnet 5 | $0.00122 | $0.00122 |
| Haiku 4.5 | $0.00061 | $0.00061 |
Grade B, and why
codex-tokens-compress AGENTS.md scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
|Official Dir Facts:mcp/config=`~/.codex/config.toml` or `.codex/config.toml`|trusted project loads `.codex/config.toml` from repo root to cwd|nearer directory overrides farther directory. What it actually says
AGENTS.md
|IMPORTANT: Prefer retrieval-led reasoning over pre-training-led reasoning for any project tasks.
|Project:codex-tokens-compress
|Primary Goal:Compress AGENTS.md into high-density index rules|increase instruction hit rate|reduce hallucination|save token usage.
|Language Policy:规则说明默认中文|path/command/file/code-id保持英文|mandatory IMPORTANT line保留英文原文.
|Repo Root:./:{.agents,.codex}
|Local Skills:.agents/skills:{agents-md-compress,skill-creator}
|Skill Trigger:Use agents-md-compress when request mentions AGENTS.md creation, compression, or rule updates.
|Official Dir Facts:repo skills=.agents/skills|user skills=$HOME/.agents/skills|admin skills=/etc/codex/skills|system skills are built in Codex.
|Official Dir Facts:project subagents=.codex/agents|user subagents=~/.codex/agents.
|Official Dir Facts:mcp/config=~/.codex/config.toml or .codex/config.toml|trusted project loads .codex/config.toml from repo root to cwd|nearer directory overrides farther directory.
|Project Constraint:This repo stores project configuration in .codex/config.toml and project skills in .agents/skills.
|Compression Format:line-1 must be title|all non-empty lines after title must start with ||prefer Category:path:{...} and Category:value1|value2.
|Allowed Content:structure|commands|constraints|verification gates|PR checklist.
|Forbidden Content:long narrative|tutorial-style explanation|code fence|##|###.
|Anti Hallucination:Never invent paths, commands, rules, or tool outputs.
|Anti Hallucination:If a fact cannot be verified from repository files, mark it as Unknown and request confirmation before execution.
|Anti Hallucination:Validate key paths and commands before writing or updating index lines.
|Evidence Priority:repo files > existing AGENTS.md > local skill references > user explicit input.
|Command Index:Validate=python .agents/skills/agents-md-compress/scripts/example.py AGENTS.md
|Fallback Validate:check title|check IMPORTANT line|check prefix ||check no ##/###/code fence.
|Token Strategy:one-line-one-rule|merge same-type short rules|delete duplicate wording|avoid examples unless requested.
|Output Strategy:default concise|only actionable facts|no repeated context.
|Change Workflow:extract highest-priority facts|rewrite to index lines|run validation|fix failures.
|PR Checklist:scope of rule changes|validation evidence|risk note.
|Maintenance Trigger:new module or renamed path|build/test command changed|non-empty lines exceed 35.
|Owner:Maintainers update this file when workflow, structure, or constraints change.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 28 lines · 611 tokens per session scan B 4bd0c9da11aa
codex-tokens-compress AGENTS.md is an instructions file published in the GitHub repository LuckyKuang/codex-tokens-compress (100 stars, last pushed 5mo ago), licensed MIT. It adds 611 tokens to every session, about $0.0031 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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